#4B4787
Closest named color: Twilight (#4E518B). oklch(43.4% 0.103 284.1), rgb(75, 71, 135).
Aa
White text reads best on this color (8.23:1).
About this color
#4B4787 is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.103 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.029 away. White text reads best on it, at 8.23:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.55:1 |
| White text | 8.23:1 |
Values
| HEX | #4B4787 |
| RGB | rgb(75, 71, 135) |
| HSL | hsl(244, 31%, 40%) |
| OKLCH | oklch(43.4% 0.103 284.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #4B4787 | 8.23:1 | AAA | Lc -92.9 | Preferred for body text |
| Black text on #4B4787 | 2.55:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #4B4787 text on white | 8.23:1 | AAA | Lc 88.3 | Fine for body text |
| #4B4787 text on black | 2.55:1 | Fails | Lc -13.9 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.
-
Step 50
50
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E8E9F6
oklch(93.7% 0.018 282.5)
-
Step 200
200
#D6D7EF
oklch(88.6% 0.033 283.8)
-
Step 300
300
#BBBCE7
oklch(80.9% 0.06 283.9)
-
Step 400
400
#9998DB
oklch(70.6% 0.097 284.3)
-
Step 500
500
#817ED1
oklch(63.1% 0.123 283.9)
-
Step 600
600
#6B66BE
oklch(55.6% 0.133 283.7)
-
Step 700
700
#5A54A4
oklch(49.1% 0.125 284.2)
-
Step 800
800 (this color)
#4B4787
oklch(43.4% 0.103 284.1)
-
Step 900
900
#3D3B6A
oklch(37.8% 0.079 283.9)
-
Step 950
950
#24233E
oklch(27.1% 0.05 284.3)
#4B4787 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #2E5189 | 0.044 |
| Deuteranopia (no green cones) | #2C4D86 | 0.043 |
| Tritanopia (no blue cones) | #385460 | 0.089 |
| Achromatopsia (no color) | #4F4F4F | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B4787
#4B4787
oklch(43.4% 0.103 284.1)
- #5A5300
#5A5300
oklch(43.5% 0.092 103.9)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #4B4787, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.029
- Dark Slate Blue #483D8B ΔE 0.029
- Blueberry #464196 ΔE 0.033
- Dusk #4E5481 ΔE 0.041
- Dusk Blue #26538D ΔE 0.052
- Cobalt #1E488F ΔE 0.056
- Denim Blue #3B5B92 ΔE 0.057
- Light Navy Blue #2E5A88 ΔE 0.061
Use #4B4787 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.